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CVE-2026-12798

A weakness has been identified in BerriAI litellm up to 1.82.2. Affected by this vulnerability is the function load_openapi_spec_async of the file litellm/proxy/_experimental/mcp_server/openapi_to_mcp_generator.py of the component MCP OpenAPI Spec Loader. This manipulation of the argument spec_path causes server-side request forgery. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early abou
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:44a02b2a5f1cd7f65c8ba97da7bb40cd0e3fd6ff816419286cc5ad3e4e195ef5
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 4 assertions

{"metric":{"baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:44b0350c7ad2ccd50b7efb3dfe90e40e0e3a336a39d8df68d406c66d294567d2 · sha256:9afaf82b8354030a… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:44b0350c7ad2ccd50b7efb3dfe90e40e0e3a336a39d8df68d406c66d294567d2 · sha256:9afaf82b8354030a… · /containers/cna/metrics/2/cvssV3_0

{"metric":{"baseScore":6.5,"vectorString":"AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:44b0350c7ad2ccd50b7efb3dfe90e40e0e3a336a39d8df68d406c66d294567d2 · sha256:9afaf82b8354030a… · /containers/cna/metrics/3/cvssV2_0

{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:44b0350c7ad2ccd50b7efb3dfe90e40e0e3a336a39d8df68d406c66d294567d2 · sha256:9afaf82b8354030a… · /containers/cna/metrics/0/cvssV4_0

Affected products and versions

1 source assertion
{"cpes":["cpe:2.3:a:litellm:litellm:*:*:*:*:*:*:*:*"],"modules":["MCP OpenAPI Spec Loader"],"product":"litellm","vendor":"BerriAI","versions":[{"status":"affected","version":"1.82.0"},{"status":"affected","version":"1.82.1"},{"status":"affected","version":"1.82.2"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44b0350c7ad2ccd50b7efb3dfe90e40e0e3a336a39d8df68d406c66d294567d2 · sha256:9afaf82b8354030a… · /containers/cna/affected/0

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:44b0350c7ad2ccd50b7efb3dfe90e40e0e3a336a39d8df68d406c66d294567d2 · sha256:9afaf82b8354030a… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:44b0350c7ad2ccd50b7efb3dfe90e40e0e3a336a39d8df68d406c66d294567d2 · sha256:9afaf82b8354030a… · /containers/cna/metrics/2/cvssV3_0
{"metric":{"baseScore":6.5,"vectorString":"AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:44b0350c7ad2ccd50b7efb3dfe90e40e0e3a336a39d8df68d406c66d294567d2 · sha256:9afaf82b8354030a… · /containers/cna/metrics/3/cvssV2_0
{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:44b0350c7ad2ccd50b7efb3dfe90e40e0e3a336a39d8df68d406c66d294567d2 · sha256:9afaf82b8354030a… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-918","description":"Server-Side Request Forgery","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:44b0350c7ad2ccd50b7efb3dfe90e40e0e3a336a39d8df68d406c66d294567d2 · sha256:9afaf82b8354030a… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"tags":["exploit"],"url":"https://gist.github.com/YLChen-007/c1104c529975699ba347feedfbe02c5a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:44b0350c7ad2ccd50b7efb3dfe90e40e0e3a336a39d8df68d406c66d294567d2 · sha256:9afaf82b8354030a… · /containers/cna/references/4
{"name":"CVE-2026-12798 | CVE Analysis and Report","tags":["third-party-advisory"],"url":"https://vuldb.com/cve/CVE-2026-12798"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:44b0350c7ad2ccd50b7efb3dfe90e40e0e3a336a39d8df68d406c66d294567d2 · sha256:9afaf82b8354030a… · /containers/cna/references/2
{"name":"Submit #811290 | litellm latest Server-Side Request Forgery (SSRF) (CWE-918)","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/811290"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:44b0350c7ad2ccd50b7efb3dfe90e40e0e3a336a39d8df68d406c66d294567d2 · sha256:9afaf82b8354030a… · /containers/cna/references/3
{"name":"VDB-372560 | BerriAI litellm MCP OpenAPI Spec Loader openapi_to_mcp_generator.py load_openapi_spec_async server-side request forgery","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/vuln/372560"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:44b0350c7ad2ccd50b7efb3dfe90e40e0e3a336a39d8df68d406c66d294567d2 · sha256:9afaf82b8354030a… · /containers/cna/references/0
{"name":"VDB-372560 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/372560/cti"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:44b0350c7ad2ccd50b7efb3dfe90e40e0e3a336a39d8df68d406c66d294567d2 · sha256:9afaf82b8354030a… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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